How the CS2 case simulator works
Pick a case, hit open, and watch the reel spin exactly like the real thing. Behind the spin, every result is decided by your browser using cryptographic randomness against Valve's real published case odds. Nothing is scripted and nothing is rigged, so the simulator is a genuinely accurate way to see what opening a CS2 case actually feels like and costs over time.
Real CS2 case odds
CS2 cases follow a fixed rarity ladder. These are the odds every open in this simulator uses:
| Rarity | Chance per open |
|---|---|
| Mil-Spec (blue) | 79.92% |
| Restricted (purple) | 15.98% |
| Classified (pink) | 3.20% |
| Covert (red) | 0.64% |
| Rare Special Item (knife or gloves) | 0.26% |
That gold Rare Special line is the one everyone chases: roughly 1 in 385 opens. Open a case a handful of times and anything can happen, but bulk-open a few hundred and you will watch the real distribution take shape.
Test the odds in bulk
The bulk buttons open 100, 500, or 1000 cases instantly and show you the actual drop rate next to the theoretical one, plus the best pulls and the total profit or loss. It is the fastest way to understand why case opening is a long-run losing game against the market price, and exactly why doing it for fun with a simulator first is smart.
From simulator to the real thing
When you want the real version, open real CS2 cases on CaseBattles.gg with provably fair results you can verify, or jump into case battles against other players. New here? Read the best CS2 case opening sites, whether CaseBattles is legit, and how provably fair works.
FAQ
Is this CS2 case simulator free?
Yes. The simulator is completely free, needs no account, and never uses real money. It is a demo of how CS2 cases open, using the real cases, real items, and real drop odds.
Are the odds in the simulator real?
Yes. Every open uses Valve’s published CS2 case odds: 79.92% Mil-Spec, 15.98% Restricted, 3.20% Classified, 0.64% Covert, and 0.26% for the rare special (knife or gloves) item. Use bulk mode to open hundreds at once and watch the results converge on those numbers.
Do I win real skins in the simulator?
No. The simulator awards no real items and holds no value. It is for entertainment and for testing how case odds behave. To open real cases and withdraw real skins, play on CaseBattles.gg.
What does the profit/loss tracker show?
It tracks the indicative Steam market value of everything you unbox against what those opens would cost at case plus key price. It is the honest long-run math of opening that Valve case.
Which cases can I simulate?
Fifteen of the most recent CS2 cases plus five iconic valuable cases like Operation Bravo, the Glove Case, and Chroma, covering everything from budget openings to Fire Serpents and rare knives.